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Question:
(a) Besides privacy, what other security functions does Pretty Good Privacy (PGP) provides?
(b) What is the Post Office Protocol (POP) used for? Why is it important that POP uses authentication, whereas the Simple Mail Transfer Protocol (SMTP) does not?
(c) When worms attack the e-mail client, the e-mail servers (the Mail Transfer Agent (MTA) and the Mail Delivery Agent (MDA)) get overwhelmed as well. Explain why.
(d) What do you meant by spam? Blocking lists are typically used to prevent spam. Discuss the effectiveness of using blocking list. How do ISPs prevent their clients from sending spam?
(e) What do you understand by the term Virtual Private network (VPN)? Describe how IPSec can be used to implement a VPN.
(f) Compare and contrast IPSec and SSH.
Question: Spreadsheet packages are widely used in Business. a) Explain why spreadsheets are so useful. b) Spreadsheet files are sometimes saved for use by other software
Information and Network Security Part 1- Recovery of an encrypted `word' using a forward search attack. Complete and correct summary for part 1. Adequately commented, clea
Get a copy of Metasploitable at Make">http://sourceforge.net/projects/metasploitable/files/Metasploitable2/ Make sure to follow these directions very carefully. You will get po
Encryption Key Size When using ciphers, the size of crypto variable or key is quite important as the strength of many encryption applications and cryptosystems were measured by
Problem (1) - Alice, Bob and Charlie have a secret key a=3, b=4, c=5, respectively. - They want to find a common secret key using Diffie-Hellan key exchange protocol (with g
How safe is the encryption of virtual private networks?
(a) Figure is a representation of a TCP header. For each of the fields lettered from A to G, state the name of the field and provide a brief explanation for the function of each fi
Question 1: (a) (i) Radio waves are subject to several propagation problems. Name any three of them. (ii) A Wi-Fi receiver requires a signal power of 50mW to operate correc
Guided Media These are those that give a conduit from one machine to another that add twisted-pair, fiber-optic cable and coaxial cable. A signal traveling along any of these
This assignment aims to enhance students' understanding of the network protocol hierarchy and flow control and error control techniques by implementing a sliding window protocol in
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